阅读说明：本技术 一种洗车机及车辆位置更新方法 (Car washer and vehicle position updating method ) 是由 范春林 高志军 陈弘昌 于 2021-09-26 设计创作，主要内容包括：本发明公开了一种洗车机及车辆位置更新方法,包括控制器、电机、传送装置和多组位置传感器,所述传送装置由所述电机驱动,所述电机上设置有编码器,所述编码器用于向控制器发送编码值,所述位置传感器用于响应所述待洗车辆的触发而向控制器发送位置信号,所述控制器分别与所述编码器、位置传感器电连接,所述多组位置传感器按照设定的距离关系沿待洗车辆传送的方向布置。所述控制器用于确定编码值与所述多组位置传感器之间的位置换算关系,确定第一坐标和第二坐标是否一致,若否,则利用所述第二坐标更新第一坐标。本发明的目的在于提供一种洗车机及车辆位置更新方法,能够在待洗车辆的坐标出现误差被及时更新,实现高精度坐标定位。(The invention discloses a car washer and a car position updating method, which comprises a controller, a motor, a transmission device and a plurality of groups of position sensors, wherein the transmission device is driven by the motor, the motor is provided with an encoder, the encoder is used for sending an encoding value to the controller, the position sensors are used for responding to the triggering of a car to be washed and sending position signals to the controller, the controller is respectively and electrically connected with the encoder and the position sensors, and the plurality of groups of position sensors are arranged along the transmission direction of the car to be washed according to a set distance relationship. The controller is used for determining the position conversion relation between the code value and the plurality of groups of position sensors, determining whether the first coordinate is consistent with the second coordinate, and if not, updating the first coordinate by using the second coordinate. The invention aims to provide a car washer and a car position updating method, which can update the coordinates of a car to be washed in time when errors occur, and realize high-precision coordinate positioning.)

1. A car washer is characterized by comprising a controller, a motor, a transmission device and a plurality of groups of position sensors, wherein the transmission device is driven by the motor and is used for transmitting a car to be washed; the controller is configured to:

when a vehicle to be washed triggers a first group of position sensors, acquiring a first coding value currently sent by an encoder;

determining a position conversion relation between the code values and the plurality of groups of position sensors according to the first code values and the distance relation between the plurality of groups of position sensors;

when a vehicle to be washed triggers a second group of position sensors, a second coding value currently sent by the coder is obtained; the second group of position sensors are any group of position sensors except the first group of position sensors in the plurality of groups of position sensors;

determining a second coordinate corresponding to the second group of position sensors and a first coordinate corresponding to the second code value;

and determining whether the first coordinate and the second coordinate are consistent according to the position conversion relation, and if not, updating the first coordinate by using the second coordinate.

2. The car washer of claim 1, wherein the conveyor comprises a first apron conveyor and a second apron conveyor connected in series, the controller further configured to:

determining whether a vehicle to be washed exists on the second chain scraper conveyor;

if not, sending a starting instruction to the first chain plate conveyor; if so, a standby command is sent to the first apron conveyor.

3. The car washer of claim 2, wherein the second set of position sensors comprises a first light correlation sensor and a second light correlation sensor, the first light correlation sensor being configured to send a first signal to the controller in response to activation of the vehicle to be washed and a second signal to the controller when not activated, the second light correlation sensor being configured to send a third signal to the controller in response to activation of the vehicle to be washed, the first light correlation sensor being disposed at an exit end of the second apron conveyor, the second light correlation sensor being disposed at an entrance end of the second apron conveyor;

the determining whether the second chain scraper conveyor has the vehicle to be washed specifically comprises:

after receiving the first signal, judging whether the second signal is received or not;

if yes, judging that the second chain plate conveyor does not have the vehicle to be washed, and if not, judging that the second chain plate conveyor has the vehicle to be washed; or

Determining whether the third signal is received before the first signal is received;

and if so, judging that the second chain plate conveyor is provided with the vehicle to be washed.

4. The car washer of claim 3, wherein the controller is further to:

after receiving the first signal, judging whether the second signal is received within a preset time;

and if not, sending an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

5. The car washer of claim 3, wherein the second light correlation sensor is further configured to send a fourth signal to the controller when not triggered, the controller further configured to:

after receiving the third signal, determining whether the fourth signal is received within a preset time;

and if not, sending an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

6. A vehicle position updating method is applied to a car washer and is characterized in that the car washer comprises a controller, a motor, a transmission device and a plurality of groups of position sensors, wherein the transmission device is driven by the motor and is used for transmitting a vehicle to be washed; the method comprises the following steps:

when a vehicle to be washed triggers a first group of position sensors, a controller acquires a first coding value currently sent by an encoder;

according to the first encoding value and the distance relationship among the plurality of groups of position sensors, the controller determines the position conversion relationship between the encoding value and the plurality of groups of position sensors;

when the vehicle to be washed triggers the second group of position sensors, the controller acquires a second encoding value currently sent by the encoder; the second group of position sensors are any group of position sensors except the first group of position sensors in the plurality of groups of position sensors;

the controller determines a second coordinate corresponding to the second group of position sensors and a first coordinate corresponding to the second encoding value;

and the controller determines whether the first coordinate and the second coordinate are consistent according to the position conversion relation, and if not, the controller updates the first coordinate by using the second coordinate.

7. The vehicle location updating method of claim 6, wherein the conveyor comprises a first apron conveyor and a second apron conveyor connected in series, the method further comprising:

the controller determines whether a vehicle to be washed is on the second scraper chain conveyor;

if not, sending a starting instruction to the first chain plate conveyor; if so, a standby command is sent to the first apron conveyor.

8. A vehicle position updating method as claimed in claim 7, wherein said second set of position sensors includes a first light correlation sensor for sending a first signal to said controller in response to activation of said vehicle to be washed and a second signal to said controller when not activated, and a second light correlation sensor for sending a third signal to said controller in response to activation of said vehicle to be washed, said first light correlation sensor being disposed at an exit end of said second apron conveyor and said second light correlation sensor being disposed at an entrance end of said second apron conveyor;

the controller determines whether a vehicle to be washed exists on the second chain scraper conveyor, and specifically comprises:

after receiving the first signal, the controller judges whether the second signal is received;

if yes, judging that the second chain plate conveyor does not have the vehicle to be washed, and if not, judging that the second chain plate conveyor has the vehicle to be washed; or

The controller judges whether the third signal is received before receiving the first signal;

and if so, judging that the second chain plate conveyor is provided with the vehicle to be washed.

9. A vehicle position updating method according to claim 8, characterized by further comprising:

after receiving the first signal, the controller judges whether the second signal is received within a preset time;

and if not, the controller sends an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

10. A vehicle position updating method as claimed in claim 8, wherein the second light correlation sensor is further configured to send a fourth signal to the controller when not triggered, the method further comprising:

after receiving the third signal, the controller determines whether the fourth signal is received within a preset time;

and if not, the controller sends an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

Technical Field

The invention relates to the field of automatic car washing, in particular to a car washer and a car position updating method.

Background

Along with the rapid development of Chinese economy, the living standard of people is increasingly improved, China, as a large population country, the number of automobile reserves reaches 1.3 hundred million, automobiles need to be cleaned in the daily use process, the existing automobile technology adopts a manual cleaning mode and an automatic cleaning mode, the manual cleaning work efficiency is low, the cost is high, therefore, the adoption of the automatic cleaning mode is the development trend of modern automobile cleaning, the automobile is generally conveyed into the automobile cleaning machine by the automobile cleaning machine, the automobile is conveyed out of the automobile cleaning machine after being cleaned, the position of the automobile is changed in real time, if the position of the automobile is not well controlled, potential safety hazards exist, a gantry type automobile cleaning machine and a tunnel type automobile cleaning machine need to be monitored in real time for ensuring the automobile cleaning safety, and the tunnel type automobile cleaning machine generally conveys the automobile to each automobile cleaning area through a conveying platform and then conveys the automobile out of the automobile cleaning machine so as to realize the automatic automobile cleaning.

In the related art, the car washing process of the car washer is as follows: after the vehicle to be washed is in neutral, the vehicle is dragged by the chain plate to be conveyed forwards, the chain plate is driven by a motor, an encoder is arranged on the motor, the distance for dragging the vehicle by the chain plate to be conveyed forwards can be determined through an encoding value provided by the encoder, the distance can be used as a coordinate of the vehicle in a car washer, and the cleaning mechanism at the corresponding coordinate position is controlled to act according to the coordinate of the vehicle to complete the vehicle cleaning work.

In the method for monitoring the coordinates of the vehicle in the related art, the coordinates of the vehicle are determined by using the code value provided by the encoder, and when the vehicle and the link plate move relatively, errors occur in the coordinates determined by the method, so that the coordinate accuracy is not high, and higher operation requirements cannot be met.

Disclosure of Invention

The invention aims to provide a car washer and a car position updating method, which can update the coordinates of a car to be washed in time when errors occur, and realize high-precision coordinate positioning.

In order to achieve the purpose of the invention, the following technical scheme is provided:

in a first aspect, the invention provides a car washer, which comprises a controller, a motor, a transmission device and a plurality of groups of position sensors, wherein the transmission device is driven by the motor and is used for transmitting a vehicle to be washed; the controller is configured to:

when a vehicle to be washed triggers a first group of position sensors, acquiring a first coding value currently sent by an encoder;

determining a position conversion relation between the code values and the plurality of groups of position sensors according to the first code values and the distance relation between the plurality of groups of position sensors;

when a vehicle to be washed triggers a second group of position sensors, a second coding value currently sent by the coder is obtained; the second group of position sensors are any group of position sensors except the first group of position sensors in the plurality of groups of position sensors;

determining a second coordinate corresponding to the second group of position sensors and a first coordinate corresponding to the second code value;

and determining whether the first coordinate and the second coordinate are consistent according to the position conversion relation, and if not, updating the first coordinate by using the second coordinate.

Compared with the prior art, the invention has the following beneficial effects: when the coordinates of the vehicle to be washed calculated by the encoder are inconsistent with the coordinates of the vehicle to be washed determined by the position sensor, the coordinates of the vehicle to be washed determined by the encoder have errors. According to the method, the position conversion relation between the code values and the plurality of groups of position sensors is determined according to the first code values and the distance relation between the plurality of groups of position sensors, so that the existence of the errors can be found in time, the first coordinates with the errors can be updated by using the correct second coordinates determined by the position sensors, and high-precision coordinate positioning is realized.

Further, conveyer is including the first chain scraper conveyor and the second chain scraper conveyor that connect gradually, the controller is still used for:

determining whether a vehicle to be washed exists on the second chain scraper conveyor;

if not, sending a starting instruction to the first chain plate conveyor; if so, a standby command is sent to the first apron conveyor.

Just allow the vehicle on the first chain scraper conveyor to enter into second chain scraper conveyor after judging not waiting to wash the vehicle on the second chain scraper conveyor, can avoid the vehicle to collide each other on second chain scraper conveyor.

Further, the second set of position sensors includes a first light correlation sensor and a second light correlation sensor, the first light correlation sensor is used for responding to the trigger of the vehicle to be washed and sending a first signal to the controller and sending a second signal to the controller when the first light correlation sensor is not triggered, the second light correlation sensor is used for responding to the trigger of the vehicle to be washed and sending a third signal to the controller, the first light correlation sensor is arranged at the outlet end of the second chain conveyor, and the second light correlation sensor is arranged at the inlet end of the second chain conveyor;

the determining whether the second chain scraper conveyor has the vehicle to be washed specifically comprises:

after receiving the first signal, judging whether the second signal is received or not;

if yes, judging that the second chain plate conveyor does not have the vehicle to be washed, and if not, judging that the second chain plate conveyor has the vehicle to be washed; or

Determining whether the third signal is received before the first signal is received;

and if so, judging that the second chain plate conveyor is provided with the vehicle to be washed.

Further, the controller is further configured to:

after receiving the first signal, judging whether the second signal is received within a preset time;

and if not, sending an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

Further, the second light correlation sensor is further configured to send a fourth signal to the controller when not triggered, and the controller is further configured to:

after receiving the third signal, judging whether the fourth signal is received within a preset time;

and if not, sending an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

When abnormal conditions such as wheel locking occur when a vehicle drives into the second chain plate conveyor from the first chain plate conveyor, the abnormal conditions such as wheel locking of the vehicle can be found in time by judging whether the fourth signal is received within the preset time, and the safety performance of the vehicle washing process is improved.

In a second aspect, the invention provides a vehicle position updating method, which is applied to a car washer, wherein the car washer comprises a controller, a motor, a conveying device and a plurality of groups of position sensors, the conveying device is driven by the motor and is used for conveying a vehicle to be washed, the motor is provided with an encoder, the encoder is used for sending an encoded value to the controller, the position sensors are used for sending position signals to the controller in response to the triggering of the vehicle to be washed, the controller is respectively and electrically connected with the encoder and the position sensors, and the plurality of groups of position sensors are arranged along the conveying direction of the vehicle to be washed according to a set distance relationship; the method comprises the following steps:

when a vehicle to be washed triggers a first group of position sensors, a controller acquires a first coding value currently sent by an encoder;

according to the first encoding value and the distance relationship among the plurality of groups of position sensors, the controller determines the position conversion relationship between the encoding value and the plurality of groups of position sensors;

when the vehicle to be washed triggers the second group of position sensors, the controller acquires a second encoding value currently sent by the encoder; the second group of position sensors are any group of position sensors except the first group of position sensors in the plurality of groups of position sensors;

the controller determines a second coordinate corresponding to the second group of position sensors and a first coordinate corresponding to the second encoding value;

and the controller determines whether the first coordinate and the second coordinate are consistent according to the position conversion relation, and if not, the controller updates the first coordinate by using the second coordinate.

Compared with the prior art, the invention has the following beneficial effects: when the coordinates of the vehicle to be washed calculated by the encoder are inconsistent with the coordinates of the vehicle to be washed determined by the position sensor, the coordinates of the vehicle to be washed determined by the encoder have errors. According to the method, the position conversion relation between the code values and the plurality of groups of position sensors is determined according to the first code values and the distance relation between the plurality of groups of position sensors, so that the existence of the errors can be found in time, the first coordinates with the errors can be updated by using the correct second coordinates determined by the position sensors, and high-precision coordinate positioning is realized.

Further, the conveyor comprises a first apron conveyor and a second apron conveyor connected in series, and the method further comprises:

the controller determines whether a vehicle to be washed is on the second scraper chain conveyor;

if not, sending a starting instruction to the first chain plate conveyor; if so, a standby command is sent to the first apron conveyor.

Just allow the vehicle on the first chain scraper conveyor to enter into second chain scraper conveyor after judging not waiting to wash the vehicle on the second chain scraper conveyor, can avoid the vehicle to collide each other on second chain scraper conveyor.

Further, the second set of position sensors includes a first light correlation sensor and a second light correlation sensor, the first light correlation sensor is used for responding to the trigger of the vehicle to be washed and sending a first signal to the controller and sending a second signal to the controller when the first light correlation sensor is not triggered, the second light correlation sensor is used for responding to the trigger of the vehicle to be washed and sending a third signal to the controller, the first light correlation sensor is arranged at the outlet end of the second chain conveyor, and the second light correlation sensor is arranged at the inlet end of the second chain conveyor;

the controller determines whether a vehicle to be washed exists on the second chain scraper conveyor, and specifically comprises:

after receiving the first signal, the controller judges whether the second signal is received;

if yes, judging that the second chain plate conveyor does not have the vehicle to be washed, and if not, judging that the second chain plate conveyor has the vehicle to be washed; or

The controller judges whether the third signal is received before receiving the first signal;

and if so, judging that the second chain plate conveyor is provided with the vehicle to be washed.

Further, the method further comprises:

after receiving the first signal, the controller judges whether the second signal is received within a preset time;

and if not, the controller sends an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

Further, the second light correlation sensor is further configured to send a fourth signal to the controller when not triggered, and the method further includes:

after receiving the third signal, the controller judges whether the fourth signal is received within a preset time;

and if not, the controller sends an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

When abnormal conditions such as wheel locking occur when a vehicle drives into the second chain plate conveyor from the first chain plate conveyor, the abnormal conditions such as wheel locking of the vehicle can be found in time by judging whether the fourth signal is received within the preset time, and the safety performance of the vehicle washing process is improved.

Further, the conveying device comprises a belt conveyor or a chain scraper conveyor.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a flow diagram of a vehicle location update method in one embodiment;

FIG. 2 is a partial schematic view of a car washer;

FIG. 3 is a flow chart of a vehicle location update method in another embodiment;

fig. 4 is an enlarged view at a in fig. 2.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Along with the rapid development of Chinese economy, the living standard of people is increasingly improved, China, as a large population country, the number of automobile reserves reaches 1.3 hundred million, automobiles need to be cleaned in the daily use process, the existing automobile technology adopts a manual cleaning mode and an automatic cleaning mode, the manual cleaning work efficiency is low, the cost is high, therefore, the adoption of the automatic cleaning mode is the development trend of modern automobile cleaning, the automobile is generally conveyed into the automobile cleaning machine by the automobile cleaning machine, the automobile is conveyed out of the automobile cleaning machine after being cleaned, the position of the automobile is changed in real time, if the position of the automobile is not well controlled, potential safety hazards exist, a gantry type automobile cleaning machine and a tunnel type automobile cleaning machine need to be monitored in real time for ensuring the automobile cleaning safety, and the tunnel type automobile cleaning machine generally conveys the automobile to each automobile cleaning area through a conveying platform and then conveys the automobile out of the automobile cleaning machine so as to realize the automatic automobile cleaning.

In the prior art, the vehicle coordinates are positioned by the conveying platform in the whole process of the vehicle, and the size corresponding to the gear clearance between the coding discs of the encoder in the method for monitoring the vehicle coordinates is the minimum measurement unit, so that the precision is not accurate enough, and the safety of the vehicle in the automatic vehicle washing process is not guaranteed. As shown in fig. 4, which is an enlarged view at a in fig. 2, the motor 400 is provided with an encoder 4, the encoder 4 includes an encoder disk 41 and a vortex proximity switch 42; the encoding disk 41 is arranged on the motor 400, and the encoding disk 41 has a plurality of tooth structures 411; the encoding disk 41 and the vortex proximity switch 42 are arranged oppositely, when the tooth-shaped structure of the encoding disk 41 is close to the vortex proximity switch 42, the proximity switch receives a metal signal and sends the metal signal to the controller, when the tooth-shaped structure 411 of the encoding disk 41 runs to the vortex proximity switch 42, the vortex proximity switch 42 receives the metal signal, the controller receives a signal of the encoder 4, when the gap between two adjacent tooth-shaped structures 411 runs to the vortex proximity switch 42, the vortex proximity switch 42 cannot receive the metal signal, the controller cannot receive the signal of the encoder 4, and therefore the measuring accuracy is not high.

In one embodiment, a vehicle location updating method is provided and applied to a car washer.

As shown in figure 1 of the drawings, in which,

s102, when the vehicle to be washed triggers the first group of position sensors 202, the controller acquires a first code value currently sent by the encoder 4.

For example, when the vehicle to be washed has been parked in place, the code value at this time is 500;

and S104, according to the first code value and the distance relationship among the plurality of groups of position sensors, the controller determines the position conversion relationship between the code value and the plurality of groups of position sensors.

The first code value of the encoder 4 is 500, the distance relationship between the plurality of sets of position sensors is a predetermined known condition, for example, the distance between the first set of position sensors and the adjacent sensor is 50 cm, and the amount of change in the code value of the encoder 4 corresponding to the distance between the first set of position sensors and the adjacent sensor is 5000, so that the conversion relationship between the amount of change Δ Y in the code value of the encoder 4 and the amount of change Δ X in the displacement can be converted from the known condition, where Δ Y is 100 Δ X, and the controller determines the position conversion relationship between the code value and the plurality of sets of position sensors, Y is 100X +500, X is (Y-500)/100, Y is the code value, and X is the first coordinate.

S106, when the vehicle to be washed triggers the second group of position sensors, the controller acquires a second encoding value currently sent by the encoder; wherein the second set of position sensors is any set of position sensors of the plurality of sets of position sensors except the first set of position sensors 202.

For example, when the vehicle to be washed triggers an adjacent sensor which is 50 cm away, the controller acquires that the second code value currently sent by the encoder is 5550. Specifically, when the vehicle to be washed triggers an adjacent sensor 50 cm away, the second code value currently sent by the controller to the encoder is not necessarily 5500, and may be 5550, for example, because the vehicle itself shakes or the accuracy of the encoder is not sufficient.

S108, the controller determines second coordinates corresponding to the second group of position sensors and first coordinates corresponding to the second code values.

Specifically, the second coordinate corresponding to the second group of position sensors is a known quantity, for example, the second group of position sensors is known as an adjacent sensor spaced apart by 50 cm, the corresponding second coordinate is 50, and the first coordinate is X ═ Y-500)/100 according to the position conversion relationship between the coded value and the plurality of groups of position sensors, for example, when Y ═ 5550, X ═ 5550-.

And S110, the controller determines whether the first coordinate and the second coordinate are consistent according to the position conversion relation, and if not, the first coordinate is updated by using the second coordinate.

For example, when the first coordinate is 50.5 and the second coordinate is 50, and the controller determines that the first coordinate and the second coordinate are not consistent according to the position conversion relation, the first coordinate 50 is updated by using the second coordinate 50.

At the moment, if the actual coded value is inconsistent with the calculated coded value, the second coordinate measured by the sensor is used for updating the first coordinate measured by the encoder, so that high-precision coordinate positioning is realized.

In another embodiment, a flow chart of a vehicle location update method,

as shown in figure 3 of the drawings,

step 302, determining whether a vehicle to be washed exists on the second apron conveyor 22;

step 304, if not, sending a start instruction to the first scraper conveyor 20; if so, a standby command is sent to the first apron conveyor 20.

Specifically, the vehicle to be washed enters the first apron conveyor 20 and is parked in place, confirming whether there is a vehicle that has not left the second apron conveyor 22 in front, and if so, waiting, and if there is no vehicle on the second apron conveyor 22 in front, the vehicle to be washed can proceed. Three situations need to be considered, one being leaving, the second having left, and the third being that the car body is fully located in the second apron conveyor 22 and has not left.

In one embodiment, the second set of position sensors includes a first light correlation sensor 204 and a second light correlation sensor 206, the first light correlation sensor 204 is configured to send a first signal to the controller in response to activation of the vehicle to be washed and a second signal when not activated, the second light correlation sensor 206 is configured to send a third signal to the controller in response to activation of the vehicle to be washed, the first light correlation sensor 204 is disposed at an exit end of the second apron conveyor 22, and the second light correlation sensor 206 is disposed at an entrance end of the second apron conveyor 22;

the determining whether the second scraper chain conveyor 22 has the vehicle to be washed specifically includes:

after receiving the first signal, judging whether the second signal is received or not;

if so, determining that no vehicle to be washed exists on the second chain plate conveyor 22, and if not, determining that the vehicle to be washed exists on the second chain plate conveyor 22; or

Determining whether the third signal is received before the first signal is received;

if yes, the vehicle to be washed on the second scraper chain conveyor 22 is judged.

Fig. 2 is a partial schematic view of a car washer, fig. 4 is an enlarged view of a position a in fig. 2, the car washer comprises a controller, a motor 400, a transmission device and a plurality of sets of position sensors, the transmission device is driven by the motor 400 and is used for transmitting a vehicle to be washed, an encoder 4 is arranged on the motor 400, the encoder 4 is used for sending an encoded value to the controller, the position sensors are used for sending position signals to the controller in response to the triggering of the vehicle to be washed, the controller is respectively electrically connected with the encoder 4 and the position sensors, and the plurality of sets of position sensors are arranged along the transmission direction of the vehicle to be washed according to a set distance relationship.

It should be noted that, as shown in fig. 2, the conveying device is used for driving the vehicle to convey from right to left. In particular, the conveyor comprises a belt conveyor or a scraper chain conveyor, into which the vehicle is driven from right to left, at the entry end there being a set of sensors for determining, on the one hand, that the vehicle to be washed has been parked in position and, on the other hand, that the first code value currently transmitted by the encoder 4, here denoted as the first set of position sensors 202, and that this position is taken as the origin of coordinates.

It should be noted that the position sensors are arranged in the conveying direction of the vehicle to be washed from right to left according to the set distance relationship, and the position sensors of the second group are any position sensors of the plurality of groups of position sensors except the position sensor 202 of the first group, and may be on the first chain conveyor 20 or the second chain conveyor 22, for example, the position sensors include a first light correlation sensor 204 arranged at the outlet end of the second chain conveyor 22 and a second light correlation sensor 206 arranged at the inlet end of the second chain conveyor 22.

The second group of position sensors are used for detecting whether the vehicle reaches a set position or not, when the vehicle reaches the set position, the position sensors are triggered to send position signals to the controller, and the position sensors can be light correlation sensors or proximity switches.

The car washer includes a first apron conveyor 20 and a second apron conveyor 22, with vehicles entering the first apron conveyor 20 from the right side and leaving the second apron conveyor 22 from the left side, and when a vehicle to be washed enters the first apron 20, the second apron conveyor 22 has another vehicle that has not yet left. In order to prevent the collision of two vehicles, the collision prevention monitoring of the vehicle washing process is required.

As shown in fig. 3, which is a flow chart of a vehicle position updating method, step 302, determines whether there is a vehicle to be washed on the second apron conveyor 22; step 304, if not, sending a start instruction to the first scraper conveyor 20; if so, a standby command is sent to the first apron conveyor 20. Specifically, when a vehicle to be washed enters the first apron conveyor 20 and is parked in place, it is necessary to confirm whether there is a vehicle that has not left the second apron conveyor 22 ahead, and if so, it waits, and if there is no vehicle on the second apron conveyor 22 ahead, the vehicle to be washed can proceed. Three situations need to be considered, one is leaving, the second is having left, and the third is that the car body is located entirely in the second apron conveyor 22 and has not left.

Specifically, in the first case, when a vehicle to be washed enters the first plate link 20 and arrives at and triggers the first group of position sensors 202, the first group of position sensors 202 send signals to the controller, and the controller judges whether a vehicle exists in the second plate link 22 in front, in one embodiment, a first light correlation sensor 204 is arranged at the outlet end of the second plate link 22, a second light correlation sensor 206 is arranged at the inlet end of the second plate link 22, and when the first light correlation sensor 204 is triggered, a first signal is sent to the controller to represent that the vehicle head on the second plate link 22 is triggered to the first light correlation sensor 204 and is ready to leave; in the second case, when the vehicle completely leaves the second apron conveyor 22, the first light correlation sensor 204 does not detect the vehicle, and sends a second signal to the controller indicating that the vehicle on the second apron conveyor 22 has left, and the controller sends a forward command to the vehicle to be washed on the first apron conveyor 20; in the third situation, before the vehicle of the second chain conveyor 22 does not touch the first optical correlation sensor 204, the controller will not receive the first signal nor the second signal, and it needs to determine whether there is a vehicle on the second chain conveyor 22 by the second optical correlation sensor 206, specifically, when the vehicle to be washed passes through the second optical sensor 206 of the second chain conveyor 22, the second optical sensor 206 detects the vehicle and sends a third signal to the controller, indicating that there is a vehicle entering the second chain conveyor 22. By monitoring whether there is a vehicle on the second apron conveyor 22, it is ensured that one car washer can wash multiple cars simultaneously, thereby reducing the possibility of collision and improving the efficiency and safety of the car washing process.

In one embodiment, where it is desired to ensure that a vehicle on the second apron conveyor 22 is not jammed upon exit, the controller determines whether the second signal is received within a preset time after receiving the first signal;

and if not, the controller sends an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

Specifically, a preset interval time is set between a first signal and a second signal, after the controller receives the first signal, if the preset interval time is exceeded and the second signal is not received, the controller indicates that the vehicle is clamped at the outlet end of the second chain conveyor 22, at the moment, the controller sends an alarm instruction to the monitoring terminal, the alarm instruction is used for indicating the monitoring terminal to send out an alarm signal, the monitoring terminal can be a display screen character prompt or a sound prompt, and the safety of the vehicle in a vehicle washing process is ensured through monitoring alarm.

In one embodiment, where it is desired to ensure that a vehicle does not jam as it enters the second apron conveyor 22, the second light correlation sensor 206 is further configured to send a fourth signal to the controller when not triggered, the method further comprising:

after receiving the third signal, the controller determines whether the fourth signal is received within a preset time;

and if not, the controller sends an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

Specifically, a preset interval time is set between the third signal and the fourth signal, after the controller receives the third signal, if the fourth signal is not received after the preset interval time is exceeded, the vehicle is blocked at the inlet end of the conveyor of the second chain plate 22, and at the moment, the controller sends an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send out an alarm signal, the monitoring terminal can be a display screen text prompt or a sound prompt, and the safety of the vehicle in a vehicle washing process is ensured through monitoring and alarming.

A car washer, the conveyor comprising a first apron conveyor 20 and a second apron conveyor 22 connected in series, the controller being further configured to:

determining whether a vehicle to be washed is present on the second apron conveyor 22;

if not, sending a starting instruction to the first chain scraper conveyor 20; if so, a standby command is sent to the first apron conveyor 20.

In one embodiment, the second set of position sensors includes a first light correlation sensor 20 and a second light correlation sensor 22, the first light correlation sensor 20 being configured to send a first signal to the controller in response to activation of the vehicle to be washed and a second signal to the controller when not activated, the second light correlation sensor 22 being configured to send a third signal to the controller in response to activation of the vehicle to be washed, the first light correlation sensor 20 being disposed at an exit end of the second apron conveyor 22, the second light correlation sensor 206 being disposed at an entrance end of the second apron conveyor 22;

the determining whether the second scraper chain conveyor 22 has the vehicle to be washed specifically includes:

after receiving the first signal, judging whether the second signal is received or not;

if so, determining that no vehicle to be washed exists on the second chain plate conveyor 22, and if not, determining that the vehicle to be washed exists on the second chain plate conveyor 22; or

Determining whether the third signal is received before the first signal is received;

if yes, the vehicle to be washed on the second scraper chain conveyor 22 is judged.

In one embodiment, the controller is further configured to:

after receiving the first signal, judging whether the second signal is received within a preset time;

and if not, sending an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

In one embodiment, the second light correlation sensor 206 is further configured to send a fourth signal to the controller when not triggered, the controller is further configured to:

after receiving the third signal, determining whether the fourth signal is received within a preset time;

and if not, sending an alarm instruction to the monitoring terminal, wherein the alarm instruction is used for indicating the monitoring terminal to send an alarm signal.

The embodiments of the apparatus and the method of the present invention are based on the same inventive concept, and are not described herein again.

In one embodiment, a computer-readable storage medium is proposed, having stored a computer program which, when executed by a processor, causes the processor to carry out the steps of the above-mentioned vehicle position updating method.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present application and the inventive concept thereof within the technical scope of the present application, and shall be covered by the scope of the present application. In addition, although specific terms are used herein, they are used in a descriptive sense only and not for purposes of limitation.